Methods for a Multi-Service Mobile Platform for Well Servicing

ABSTRACT

A multi-service mobile platform is enabled for various different types of well servicing, including jointed pipe service, coiled tubing service, snubbing service, and wireline service. The multi-service mobile platform may be installed using loads to deliver modular components and assemblies, such as on a truck bed for example. The multi-service mobile platform is mobile and may be positioned in an installed and configured state from one wellhead to another wellhead. The multi-service mobile platform includes integrated hydraulic and electrical power sources and integrated lines for the power sources.

BACKGROUND Field of the Disclosure

The present disclosure relates generally to well services forhydrocarbon production and, more particularly, to a multi-service mobileplatform for well servicing.

Description of the Related Art

After a well for hydrocarbon production has been drilled and completed,various well servicing operations (or simply “well servicing” as usedherein) may be performed. Well servicing may refer to the maintenance,repair, or reconfiguration of an existing well. Well servicing may beindicated by an issue of well integrity that arises in a well, byproduction activity detected in the well, or may be part of a productionplan for the well. Well servicing may encompass any of a number ofdifferent kinds of interventions that may involve running jointed pipeor coiled tubing into the well under different conditions. For example,under pipe light conditions, a snubbing unit may be used during wellservicing to run jointed pipe or coiled tubing using snubbing force.Well servicing may also include particular instrumentation operationsthat are performed using a wireline enabled for coupling to a downholetool that may be enabled to perform various measurement or actuationoperations upon insertion into the borehole of the well.

In some instances, a particular type of well servicing operation that isindicated for a particular well may be indicated as a result of aprevious well servicing operation. For example, during wirelineoperations, certain well conditions may be detected and may indicateanother type of intervention by a well servicing operation. Typically,different kinds of well servicing operations are provided by specializedservice operators that respectively have the particular equipment andexpertise available for one kind of well servicing operation. In somecases, drilling/milling or finishing out a well may also be performedwith the corresponding equipment as a well service. When a differentkind of well servicing operation is indicated, a different serviceprovider may be engaged who will install the corresponding equipmentagain at the well site. The installation and removal of differentequipment from a well site for performing individual well servicingoperations may be costly, time-consuming, and hazardous, and therefore,undesirable.

Similarly, when performing well servicing on a plurality of wells at awell site, such as a multi-well fracking pad, a great deal of time andeffort may be expended simply transferring equipment from one well to anadjacent well, which is also undesirable.

SUMMARY

In one aspect, a first method of installing a multi-service mobileplatform for well servicing is disclosed. The first method may includeinstalling, at a first location, a base platform structure having a topbox and a bottom box, the base platform structure including four mainlift cylinders that enable the top box to be lowered over the bottom boxsuch that the top box and the bottom box mate together, and installing afirst hydraulic pressure unit in proximity to the first location toprovide hydraulic pressure to the main lift cylinders to enable the mainlift cylinders to raise and lower the top box with respect to the bottombox. In the first method, the top box and the bottom box may eachcomprise respective first portions and second portions, while each ofthe first portion and the second portion may include two of the mainlift cylinders. In the first method, the first portion may correspond toan operator's side and the second portion corresponding to an offoperator's side of the multi-service mobile platform. The first methodmay further include delivering at least one work floor section to thefirst location and installing the work floor section on the top box. Thefirst method may further include delivering to the first location in anysequential order of loads a plurality of loads. In the first method, theplurality of loads may include a first load comprising a first auxiliaryplatform for coupling to the rear work floor section, the first portion,and the second portion of the top box, including installing the firstauxiliary platform. In the first method, the first auxiliary platformmay include a backup hydraulic pressure unit, a draw works, and anelectrical power unit. In the first method, the plurality of loads mayfurther include a second load comprising a blowout-preventer (BOP)platform, including installing the BOP platform to a bottom edge at thefirst portion and the second portion of the top box, a third loadcomprising a panorama cabin and a second hydraulic pressure unit thatcouples to the first portion of the top box, including installing thepanorama cabin. In the first method, the panorama cabin may includefront windows, top windows, and end windows that provide a working viewof the work floor and a derrick installed on the work floor. In thefirst method, the plurality of loads may include a fourth loadcomprising a second auxiliary platform for coupling to the secondportion of the top box, including installing the second auxiliaryplatform, and a sixth load comprising the derrick, including hoisting ofa derrick onto the work floor. In the first method, the derrick mayinclude a rotary drive, an auto torque wrench for pipe, and a crane arm,while the derrick may be aligned with the wellhead when installed on thework floor.

In any of the disclosed embodiments, the first method may furtherinclude connecting the second hydraulic pressure unit to the main liftcylinders in place of the first hydraulic pressure unit to enable themain lift cylinders to raise and lower the top box with respect to thebottom box using the second hydraulic pressure unit.

In any of the disclosed embodiments of the first method, hoisting thederrick onto the work floor may further include hoisting the derrickonto the work floor using the draw works.

In any of the disclosed embodiments, the first method may furtherinclude delivering, in any sequential order with respect to other loads,a sixth load to the first location, the sixth load including a snubbingunit. In any of the disclosed embodiments, the first method may furtherinclude lifting the snubbing unit onto the second auxiliary platform.

In any of the disclosed embodiments, the first method may furtherinclude delivering, in any sequential order with respect to other loads,a seventh load to the first location, the seventh load including atleast one pipe stand rack, and including installing the at least onepipe stand rack at a front portion of the multi-service mobile platform.

In any of the disclosed embodiments, the first method may furtherinclude delivering, in any sequential order with respect to other loads,an eighth load to the first location, the eighth load including a pipehandler, and including installing the pipe handler adjacent to the atleast one pipe stand rack.

In any of the disclosed embodiments, the first method may furtherinclude delivering, in any sequential order with respect to other loads,a ninth load to the first location, the ninth load including a pipe bin,and including placing the pipe bin and the pipe handler adjacent to eachother.

In any of the disclosed embodiments, the first method may furtherinclude delivering, in any sequential order with respect to other loads,a tenth load to the first location, the tenth load including a coiledtubing injector. In any of the disclosed embodiments, the first methodmay further include lifting the coiled tubing injector onto the secondauxiliary platform.

In any of the disclosed embodiments, the first method may furtherinclude delivering, in any sequential order with respect to other loads,an eleventh load to the first location, the eleventh load including awireline unit, including lifting the wireline unit onto the top box.

In any of the disclosed embodiments, the first method may furtherinclude lifting, using the crane arm, the snubbing unit over to thewellhead from the second auxiliary platform. In any of the disclosedembodiments of the first method, the snubbing unit may be placed on atrolley running on rails on the work floor, while the first method mayfurther include, prior to lifting the snubbing unit from the secondauxiliary platform, positioning the snubbing unit in proximity to thewellhead using the trolley.

In any of the disclosed embodiments, the first method may furtherinclude moving the pipe handler away from the multi-service mobileplatform, while the pipe handler remains in a working position, anddelivering, in any sequential order with respect to other loads, atwelfth load to the first location, the twelfth load including a coiledtubing handler including a reel of coiled tubing enabled to feed thecoiled tubing injector, and further including installing the coiledtubing handler adjacent to the pipe handler.

In any of the disclosed embodiments, the first method may furtherinclude pinning the top box to a raised height with respect to thebottom box.

In any of the disclosed embodiments of the first method, installing theBOP platform to a bottom edge at the first portion and the secondportion of the top box may further include using the main lift cylindersto position the top box to unload the BOP platform and fix the BOPplatform to a bottom edge at the first portion and the second portion ofthe top box including sliding the BOP platform in place into themulti-service mobile platform.

In any of the disclosed embodiments of the first method, installing, atthe first location, the base platform structure may further includepositioning the bottom box on at least one supplemental box to elevatethe multi-service mobile platform by a height of the supplemental box.

In any of the disclosed embodiments of the first method, at least oneload may be delivered on a truck bed, while the main lift cylinders maybe used to raise the top box to a height corresponding to the truckled.

In any of the disclosed embodiments, the first method may furtherinclude lifting, using the crane arm, the coiled tubing injector over tothe wellhead from the second auxiliary platform. In any of the disclosedembodiments of the first method, the coiled tubing injector may beplaced on a trolley running on rails on the work floor, while the firstmethod may further include, prior to lifting the coiled tubing injectorfrom the second auxiliary platform, positioning the coiled tubinginjector in proximity to the wellhead using the trolley.

In another aspect, a control cabin for a multi-service mobile platformis disclosed. The control cabin may include a panorama window to enablehorizontal and vertical viewing of the multi-service mobile platform inoperation when the control cabin is installed on the multi-servicemobile platform, at least one hydraulic cylinder enabled to raise orlower the control cabin, a first control system for controlling a rotarydrive and a draw works associated with the multi-service mobileplatform, a second control system for controlling a snubbing unitassociated with the multi-service mobile platform, a third controlsystem for controlling a coiled tubing handler associated with themulti-service mobile platform, and a fourth control system forcontrolling a wireline unit associated with the multi-service mobileplatform. In the control cabin, the first control system, the secondcontrol system, the third control system, and the fourth control systemmay be powered using an electrical power unit included with themulti-service mobile platform.

In any of the disclosed embodiments, the control cabin may furtherinclude a first workstation enabled to receive user input andcommunicate with the first control system and the second control system,and a second workstation enabled to receive user input and communicatewith the third control system and the fourth control system. In thecontrol cabin, the first workstation and the second workstation may bepowered using the electrical power unit.

In any of the disclosed embodiments of the control cabin, when thecontrol cabin is installed on the multi-service mobile platform, a userof the first workstation or the second workstation may be provided aview from the rotary drive to a blowout-preventer (BOP) included withthe multi-service mobile platform by the panorama window.

In any of the disclosed embodiments, the control cabin may furtherinclude a heating, ventilation, and air conditioning (HVAC) system tomaintain a desired working climate within the control cabin. In thecontrol cabin, the HVAC system may be powered using the electrical powerunit.

In any of the disclosed embodiments, the control cabin may furtherinclude network equipment to facilitate networking among the firstworkstation, the second workstation, the first control system, thesecond control system, the third control system, and the fourth controlsystem, while the network equipment may be powered using the electricalpower unit.

In yet another aspect, a multi-service mobile platform for wellservicing is disclosed. The multi-service mobile platform may include abase platform structure having a lower level and an upper level thatmate together when the upper level is lowered over the lower level, aplatform base formed by an upper surface of the upper level, theplatform base for accessing a wellhead for well servicing operations,four hydraulic lift cylinders for vertically raising and lowering theupper level of the base platform structure, a derrick with a rotarydrive installed at the upper level, the derrick enabled to supportjointed-pipe installation at the wellhead, a coiled tubing injectormounted on the derrick and enabled to support coiled tubing installationat the wellhead, and a hydraulic pressure generator enabled to supplyhydraulic pressure to at least the four hydraulic lift cylinders, thederrick, and the coiled tubing injector.

In any of the disclosed embodiments of the multi-service mobileplatform, at least one of the hydraulic lift cylinders may furtherinclude mechanical feet enabled to walk the multi-service mobileplatform when the multi-service mobile platform is assembled.

In any of the disclosed embodiments, the multi-service mobile platformmay further include a snubbing unit enabled for installation on thewellhead, and a wireline unit enabled to support wireline operations atthe wellhead, while the hydraulic pressure generator may be enabled tosupply hydraulic pressure to the snubbing unit.

In any of the disclosed embodiments, the multi-service mobile platformmay further include a control cabin enabled for coupling to the upperlevel, the control cabin enabling monitoring and control of thehydraulic lift cylinders, the derrick, the rotary drive, the coiledtubing injector, the snubbing unit, and the wireline unit.

In any of the disclosed embodiments of the multi-service mobileplatform, the control cabin may further include a panorama window thatenables direct view of the derrick, the platform base, and the wellhead.

In any of the disclosed embodiments, the multi-service mobile platformmay further include an electrical power generator enabled to supplyelectrical power to at least the derrick, the coiled tubing injector,the snubbing unit, the wireline unit, and the control cabin.

In any of the disclosed embodiments, the multi-service mobile platformmay further include a hydraulic pressure manifold accessible from thelower level, the hydraulic pressure manifold enabling access from thelower level to a plurality of hydraulic fittings providing fluidcommunication for hydraulic pressure.

In any of the disclosed embodiments of the multi-service mobileplatform, the platform base may further include a plurality of steelleaves covering the platform base. In the multi-service mobile platform,at least one of the steel leaves may be removably attached to theplatform base to enable access to the lower level from the platformbase.

In any of the disclosed embodiments of the multi-service mobileplatform, the upper level may further include an internal staircase fromthe platform base to the lower level, and a wellhead platform enabledfor coupling to the upper level and accessible from the internalstaircase, while the wellhead platform may enable a worker to access thewellhead.

In any of the disclosed embodiments of the multi-service mobileplatform, the hydraulic pressure generator may further include aplurality of hydraulic pumps. In the multi-service mobile platform, eachof the hydraulic pumps may be individually activated depending on ahydraulic load provided by the hydraulic pressure generator.

In any of the disclosed embodiments of the multi-service mobileplatform, all of the plurality of hydraulic pumps may be activated at amaximum hydraulic load provided by the hydraulic pressure generator.

In any of the disclosed embodiments of the multi-service mobileplatform, the coiled tubing injector and the snubbing unit may beintegrated as a single unit.

In any of the disclosed embodiments of the multi-service mobileplatform, the derrick may be a telescopic derrick that is attached tothe platform base.

In any of the disclosed embodiments of the multi-service mobileplatform, the telescopic derrick may support strings of single pipeoperations, double pipe operations, and triple pipe operations.

In any of the disclosed embodiments, the multi-service mobile platformmay further include a rotary table installed at the platform base.

In any of the disclosed embodiments, the multi-service mobile platformmay further include a pair of power tongs, and an auto-torque pipewrench, while the pair of power tongs and the auto-torque pipe wrenchmay be enabled for use with the rotary table.

In any of the disclosed embodiments of the multi-service mobileplatform, the derrick may further include a tie-off point for the coiledtubing injector when the coiled tubing injector is in use. In any of thedisclosed embodiments of the multi-service mobile platform, the tie-offpoint may be adjustable at different heights with respect to thederrick.

In any of the disclosed embodiments, the multi-service mobile platformmay further include a driver for the wireline unit attached to thederrick.

In any of the disclosed embodiments, the multi-service mobile platformmay further include an auxiliary platform enabled for coupling to theupper level at an opposing side of the upper level from the controlcabin. In the multi-service mobile platform, the auxiliary platform maybe enabled for stowing the coiled tubing injector when the coiled tubinginjector is not in use.

In any of the disclosed embodiments of the multi-service mobileplatform, the auxiliary platform may further include a choke manifoldenabled to change direction of fluid flow in fluid communication withthe wellhead, and an accumulator enabled to activate a blowout preventerinstalled on the wellhead.

In any of the disclosed embodiments of the multi-service mobileplatform, the control cabin may further include at least two hydraulicrams enabled to raise or lower the control cabin relative to the upperlevel.

In any of the disclosed embodiments, the multi-service mobile platformmay further include a plurality of outriggers enabled to structurallysupport the base platform structure, while the outriggers may increasethe weight capacity of the multi-service mobile platform when deployedon the ground. In any of the disclosed embodiments of the multi-servicemobile platform, the outriggers may be enabled for lifting off theground when the mechanical feet walk the multi-service mobile platform.

In any of the disclosed embodiments, the multi-service mobile platformmay further include a draw works attached to the upper level, the drawworks operating in conjunction with the rotary drive and enabled toraise and lower the telescoping derrick. In any of the disclosedembodiments of the multi-service mobile platform, the draw works may bepowered by the hydraulic pressure generator. In any of the disclosedembodiments of the multi-service mobile platform, the draw works may bepowered by the electrical power generator.

In any of the disclosed embodiments of the multi-service mobileplatform, the base platform structure may further include at least onesupplemental box to elevate the multi-service mobile platform by aheight of the supplemental box.

In still a further aspect, a second method of transferring amulti-service mobile platform for well servicing between wells isdisclosed. The second method may include installing a multi-servicemobile platform at a first wellhead. In the second method, themulti-service mobile may include a base platform structure having alower level and an upper level and four main lift cylinders for raisingand lowering the upper level with respect to the lower level, a derrickincluding a rotary drive installed at a work floor supported by theupper level, a draw works, a blow-out preventer (BOP) enabled forcoupling to the first wellhead, an electrical power unit, a hydraulicpower unit including a plurality of hydraulic lines, a pipe stand rack acoiled tubing injector, and a pumping manifold. In the second method,the installing may further include pinning the upper level with respectto the lower level, lowering an outrigger to the ground to stabilize themulti-service mobile platform, and connecting the first wellhead influid communication with BOP and the pumping manifold. The second methodmay further include, responsive to a decision to move the multi-servicemobile platform from the first wellhead to a second wellhead in vicinityof the first wellhead, preparing the multi-service mobile platform forwalking, further including lifting up the outrigger off the ground,disconnecting the first wellhead from fluid communication with thepumping manifold, closing a master valve for the first wellhead,disconnecting the BOP and the pumping manifold from fluid communicationwith the first wellhead and rest the BOP on a BOP platform at the lowerlevel, and walking the multi-service mobile platform to the secondwellhead using the main lift cylinders with the upper level pinned tothe lower level, including controlling actuation of base plates andsliding plates respectively attached to each of the main lift cylinders.

In any of the disclosed embodiments of the second method, themulti-service mobile platform may further include a snubbing unit, and awireline unit.

In any of the disclosed embodiments, the second method may furtherinclude controlling actuation of the base plates and the sliding platesto align the multi-service mobile platform with the second wellhead.When the multi-service mobile platform is aligned with the secondwellhead, the second method may further include connecting the secondwellhead in fluid communication with BOP and the pumping manifold,lowering the outrigger to the ground to stabilize the multi-servicemobile platform, and powering on the electrical power unit and thehydraulic power unit to place the multi-service mobile platform in anoperational state.

In any of the disclosed embodiments of the second method, the hydraulicpower unit and the plurality of hydraulic lines may remain connectedduring the walking.

In any of the disclosed embodiments of the second method, the coiledtubing injector may remain connected to a coiled tubing reel via coiledtubing during the walking, while the coiled tubing reel may be enabledto move independently on the ground with respect to the multi-servicemobile platform.

In any of the disclosed embodiments, the second method may furtherinclude moving a pipe handler along with the multi-service mobileplatform, while the pipe handler may be enabled to move independently onthe ground with respect to the multi-service mobile platform.

In yet a further aspect, a third method of operating a multi-servicemobile platform for well servicing is disclosed. The third method mayinclude installing a multi-service mobile platform at a first wellhead.In the third method, the multi-service mobile platform may include abase platform structure having a lower level and an upper level and fourmain lift cylinders for raising and lowering the upper level withrespect to the lower level, a derrick including a rotary drive installedat a work floor supported by the upper level, a draw works, a blow-outpreventer (BOP) enabled for coupling to the first wellhead, anelectrical power unit, a hydraulic power unit including a plurality ofhydraulic lines, a pipe stand rack, a coiled tubing injector, a snubbingunit, a pumping manifold, and a wireline unit. The third method mayfurther include running jointed pipe into the wellhead using the derrickand the draw works, and, after running jointed pipe is completed,running coiled tubing into the wellhead using the coiled tubing injectorand a coiled tubing reel located adjacent to the multi-service mobileplatform.

In any of the disclosed embodiments, the third method may furtherinclude, before the running jointed pipe is completed, using thesnubbing unit for running the jointed pipe into the wellhead.

In any of the disclosed embodiments, the third method may furtherinclude, after the running coiled tubing is completed, loading the pipestand rack with pipe using a pipe handler located adjacent to themulti-service mobile platform, and re-running jointed pipe into thewellhead using the derrick and the draw works.

In any of the disclosed embodiments, the third method may furtherinclude, prior to the running jointed pipe or subsequent to there-running jointed pipe, running wireline using the wireline unit intothe wellhead.

In any of the disclosed embodiments, the third method may furtherinclude, after the running coiled tubing is completed, running wirelineusing the wireline unit into the wellhead.

In any of the disclosed embodiments, the third method may furtherinclude, omitting the running jointed pipe.

In any of the disclosed embodiments, the third method may furtherinclude, prior to the running coiled tubing or subsequent to the runningcoiled tubing, running wireline using the wireline unit into thewellhead.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of the present disclosure and itsfeatures and advantages, reference is now made to the followingdescription, taken in conjunction with the accompanying drawings, inwhich:

FIG. 1 is a block diagram of selected elements of an embodiment of amulti-service mobile platform;

FIGS. 2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H, and 2I are depictions of selectedelements of an embodiment of a base platform structure used for amulti-service mobile platform;

FIG. 3 is a depiction of selected elements of an embodiment of a workfloor with a panorama cabin in a multi-service mobile platform;

FIG. 4 is a depiction of selected elements of an embodiment of a workfloor with an auxiliary platform in a multi-service mobile platform;

FIG. 5 is a depiction of selected elements of an embodiment of a lowerrear auxiliary platform in a multi-service mobile platform;

FIG. 6A is a depiction of selected elements of an embodiment of a workfloor with a derrick in a multi-service mobile platform;

FIG. 6B is a depiction of selected elements of an embodiment of a workfloor with a derrick in a multi-service mobile platform;

FIG. 7 is a depiction of selected elements of an embodiment of pipehandling in a multi-service mobile platform;

FIG. 8 is a depiction of selected elements of an embodiment of awellhead with a blowout preventer (BOP) in a multi-service mobileplatform;

FIG. 9 is a depiction of selected elements of an embodiment of awireline unit in a multi-service mobile platform;

FIG. 10 is a depiction of selected elements of an embodiment of externalground equipment used with a multi-service mobile platform;

FIG. 11A is a depiction of selected elements of an embodiment of walkingand positioning of a multi-service mobile platform;

FIG. 11B is a depiction of selected elements of an embodiment of pipeservice with a multi-service mobile platform;

FIG. 11C is a depiction of selected elements of an embodiment of pipeservice with a multi-service mobile platform;

FIG. 11D is a depiction of selected elements of an embodiment of a rapidchange-off between pipe and coiled tubing service with a multi-servicemobile platform;

FIG. 12A is a depiction of selected elements of an embodiment of pipesnubbing with a front view of a multi-service mobile platform;

FIG. 12B is a depiction of selected elements of an embodiment of a rearview of a multi-service mobile platform;

FIG. 13A is a depiction of selected elements of an embodiment ofplatform delivery and installation for a multi-service mobile platform;

FIG. 13B is a depiction of selected elements of an embodiment ofplatform delivery and installation for a multi-service mobile platform;

FIG. 13C is a depiction of selected elements of an embodiment ofpanorama cabin height adjustment in a multi-service mobile platform;

FIG. 14 is a depiction of selected elements of an embodiment of a frontview in a walking state of a multi-service mobile platform;

FIG. 15 is a depiction of selected elements of an embodiment of anotherbase platform structure used for a multi-service mobile platform;

FIGS. 16A, 16B, and 16C are a flowchart of selected embodiments of amethod for installing a multi-service mobile platform; and

FIG. 17 is a flowchart of selected embodiments of a method fortransferring a multi-service mobile platform between wells.

DESCRIPTION OF PARTICULAR EMBODIMENT(S)

In the following description, details are set forth by way of example tofacilitate discussion of the disclosed subject matter. It should beapparent to a person of ordinary skill in the field, however, that thedisclosed embodiments are exemplary and not exhaustive of all possibleembodiments.

Throughout this disclosure, a hyphenated form of a reference numeralrefers to a specific instance of an element and the un-hyphenated formof the reference numeral refers to the element generically orcollectively. Thus, as an example (not shown in the drawings), device“12-1” refers to an instance of a device class, which may be referred tocollectively as devices “12” and any one of which may be referred togenerically as a device “12”. In the figures and the description, likenumerals are intended to represent like elements.

As noted previously, different well servicing operations typicallyinvolve the installation and use of specialized equipment that isparticular to a single type of well servicing operation. In many cases,specialized service providers offer a particular type of well servicingoperation and gain exclusive access to wells when performing theirparticular service operation, in order to install the specializedequipment.

In one example, the use of jointed pipe for well servicing may involvethe installation of a derrick with a rotary drive at the well site, inaddition to pipe storage racks and pipe handling equipment. Thus, thedeployment of jointed pipe well servicing may accordingly involve thedelivery and installation of certain heavy equipment, along with thesupporting components for providing electrical power, hydraulicpressure, fluid handling, and support for various bottom hole assemblies(BHAs). Before a single jointed pipe can be introduced into the wellwith this conventional approach, the well site may be cleared forinstallation of the jointed pipe heavy equipment, which may involveusing a crane to lift equipment into place. Thus, the conventionalapproach with conventional specialized equipment may involve a largeoverhead effort to deploy the specialized equipment once a decision hasbeen made to use jointed pipe for well servicing. Such large overheadeffort may consume significant resources and, moreover, may result inextended periods of inaccessibility of a particular well site toaccommodate the heavy equipment installation effort. This large overheadeffort also poses a safety hazard to the personnel performing theinstallation as well as those in the well pad area.

Continuing with the above example, when a subsequent decision is made touse coiled tubing for well servicing during jointed pipe servicing, inmany conventional operations such a change would involve first securingthe well with the installed jointed pipe, making the well accessible toequipment to run coiled tubing, and then installing the coiled tubingequipment, before the coiled tubing can be introduced into the well forwell servicing. Using typical commercial solutions and services, makingthe well accessible for coiled tubing may involve removing some or allof the heavy equipment that was previously installed to run jointed pipein the well. Again, this approach may be inefficient in terms ofdeployed resources and long installation and uninstallation times duringwell servicing, which may be economically undesirable and, again, pose asafety hazard to involved personnel.

Similarly, during a jointed pipe run (or while running coiled tubing)during well servicing, it may be observed that the use of a snubbingunit is indicated, such as when pipe light conditions occur. However,when the snubbing equipment and services are obtained from a specializedprovider, the snubbing unit may have to be ordered, delivered, andinstalled, before snubbing can proceed with the jointed pipe (or coiledtubing). Furthermore, such a separate snubbing unit may be deliveredwith corresponding support equipment (e.g., a hydraulic pressure unit)that may be redundant and may result in duplicate equipment beinginstalled and operated at the well site, which again would beinefficient and resource intensive, and may be economicallydisadvantageous for this reason. The use of redundant equipment may alsoinclude various additional hydraulic pressure lines, power lines, andother connections that may congest work areas, passageways, etc., andmay represent additional safety hazards for personnel. In addition, theredundant equipment and associated redundant installation andoperational procedures may result in additional personnel who areexposed to the safety hazards.

As will be disclosed in further detail herein, a multi-service mobileplatform for well servicing may provide various integrated services andequipment, including jointed pipe, coiled tubing, snubbing, and wirelineservices. The multi-service mobile platform for well servicing disclosedherein may be enabled for installation at a well site with limited useof a crane and may be predominately delivered and installed usingstandard truck bed loads on a plurality of trucks that deliverindividual components of the multi-service mobile platform. Themulti-service mobile platform for well servicing disclosed herein may bemodularly constructed with the standard truck-load sized components thatcan be assembled using a core base platform structure. The multi-servicemobile platform for well servicing disclosed herein may include apanorama cabin that provides a centralized control facility for variouswell servicing operations and that enables users working in the panoramacabin to have an unobscured panorama view of the platform base, the wellbore, and the derrick/rotary drive simultaneously. The multi-servicemobile platform for well servicing disclosed herein may comprise abox-in-box modular structure having four hydraulic lift cylinders thatcan raise or lower the platform base as desired. The multi-servicemobile platform for well servicing disclosed herein may also comprisemechanical feet on which each of the four hydraulic lift cylinders restsand that enable the multi-service mobile platform to be moved by walkingusing the mechanical feet. The multi-service mobile platform for wellservicing disclosed herein may also be enabled to walk using themechanical feet in an installed and assembled condition, therebyenabling access to neighboring wells at a pad site having multiplewellbores with relatively little effort and delay, and withoutdisassembly.

Additionally, the multi-service mobile platform for well servicingdisclosed herein may provide a centralized source for electrical powerthat is enabled to supply electrical power to various equipment forjointed pipe, coiled tubing, snubbing, and wireline services. Themulti-service mobile platform for well servicing disclosed herein mayprovide a centralized source for hydraulic pressure that is enabled tosupply hydraulic pressure to various equipment for jointed pipe, coiledtubing, snubbing, and wireline services. The multi-service mobileplatform for well servicing disclosed herein may further integrateelectrical power and hydraulic lines and connections into themulti-service mobile platform to more efficiently use space and reduceobstructed space as compared to various electrical power and hydrauliclines being connected between various pieces of equipment that areindividually installed and operated. The multi-service mobile platformfor well servicing disclosed herein may integrate various operationaland safety features to improve working conditions for personnel workingon the multi-service mobile platform. These features, among variousadditional features, are described in further detail herein for thedisclosed multi-service mobile platform for well servicing.

Referring now to FIG. 1, a multi-service mobile platform 100 is shown ina block diagram that is a top view showing various sub-elements andmodules. FIG. 1 is a schematic illustration for descriptive purposes andis not necessarily drawn to scale or perspective. As shown in theembodiment depicted in FIG. 1, multi-service mobile platform 100includes a base platform structure 120, a coiled tubing (CT) handler126, a derrick/rotary drive 122, at least one pipe stand rack 115, asnubbing unit 128, and a panorama cabin platform 124. Also included withmulti-service mobile platform 100 in FIG. 1 are an electric power unit116, a hydraulic pressure unit 118, a jointed pipe handler 114, a leftauxiliary platform 125, a rear auxiliary platform 130, and a wirelineunit 112. As shown, snubbing unit 128 in FIG. 1 may be positioned over awell center (not shown in FIG. 1) in operation, while CT handler 126 mayalso be aligned with the well center. As shown in FIG. 1, jointed pipehandler 114 is in an offset position to the well center, but can bemoved or rotated into position to be able to access the well center andpipe stand racks 115 in operation. Thus, in the configuration shown inFIG. 1, multi-service mobile platform 100 is particularly intended forwell servicing operations, such as well completion and workoveroperations. Furthermore, reference is made herein to an operator's sideand an off operator's side (or left side and right side, or simply leftand right) with respect to various elements, platforms, and equipmentincluded with multi-service mobile platform 100, and to a forwarddirection (or front), given by arrow 140 in FIG. 1, and a rear direction(or rear) which is opposite of the arrow 140. It will be understood thatthe relative orientation and placement of elements may be arbitrary,such that various elements may be located at different locations anddifferent sides of multi-service mobile platform 100 in differentimplementations.

As will be described in further detail herein, multi-service mobileplatform 100 is presented as a single, modular, integrated,multi-function, and self-contained well intervention rig that mayperform well intervention at any stage of well life. As shown anddescribed herein, multi-service mobile platform 100 may be constructedusing base platform structure 120 as a base element. Base platformstructure 120 may comprise a rig base platform having a lower boxstructure and an upper box structure (see e.g., FIG. 2A) that arecollapsible within each other. The lower box structure may remain on theground, while the upper box structure can be used to raise or lower aworking surface of multi-service mobile platform 100, along with otherelements that are fixed to the upper box structure. Each of the lowerbox structure and the upper box structure may be comprised of twoseparate boxes on the left side and the right side of base platformstructure 120, with each of the two separate boxes having two respectivemain hydraulic cylinders on the left side and the right side, for atotal of four main hydraulic cylinders. The main hydraulic cylinders maybe dimensioned to lift the entire upper box structure and variouselements attached to the upper box structure, as shown in the blockdiagram of FIG. 1. For example, the main hydraulic cylinders may be usedto raise and lower the upper box structure relative to the lower boxstructure during initial installation of multi-service mobile platform100. For example, various auxiliary platforms and auxiliary loads may bedelivered on trucks for installation on the base platform structure 120.The truck may be driven to a position adjacent to base platformstructure 120, while the height of the upper box structure may belowered to align a bottom edge of the upper box structure with theheight of the truck bed (see also FIGS. 2I and 13A). Then, the auxiliaryplatform load on the truck bed may be aligned with and fastened to theupper box structure, and the main hydraulic cylinders are then used toraise the auxiliary platform load off the truck bed, as the truckdeparts unloaded. A similar process may be used to attach variouscomponents and elements to multi-service mobile platform 100 usingstandard truck-sized modular loads. In this manner, the extended use ofan expensive crane to unload heavy structural elements of multi-servicemobile platform 100 may be avoided, which is economically andlogistically desirable, and further enables multi-service mobileplatform 100 to be installed at remote locations with greater ease andmore safely. Because of the modular integrated design of multi-servicemobile platform 100, the main hydraulic cylinders may also be used toraise or lower the upper box structure and attached elements to adesired height while multi-service mobile platform 100 is operationalyet stationery. The upper box structure may accordingly supportderrick/rotary drive 122, snubbing unit 128, electrical power unit 116,hydraulic pressure unit 118, panorama cabin 124, auxiliary platform 125,and wireline unit 112 while multi-service mobile platform 100 isoperational.

In addition to raising and lowering the upper box structure when baseplatform structure 120 is stationery, the main hydraulic cylinders maybe equipped with so-called ‘walking feet’ (see also FIGS. 2A, 2B, 2C,walking foot 242), which are additional mechanical supports that enablemulti-service mobile platform 100 to ‘walk’ in a process that involvesindividual steps, or incremental movements. Specifically, a walking footmay comprising a base plate to which a sliding plate is attached, alongwith lateral cylinders to actuate the sliding plate relative to the baseplate. The base plate may further rotate in 90 degree increments toenable walking in four directions: front, back, left, and right. Whenthe sliding plate is aligned with the base plate, the sliding plate canmove to an offset position relative to the base plate. When the slidingplate is offset from the base plate, the sliding plate can move to analigned position relative to the base plate. Furthermore, when a walkingfoot (i.e., the base plate) is on the ground and the sliding plate isactuated, multi-service mobile platform 100 will be moved by the foursliding plates being actuated while being slightly raised using the mainhydraulic cylinders. When a walking foot is raised off the ground andthe sliding plate is actuated, the base plate will move relative to thesliding plate. Accordingly, a walking motion of base platform structure120 (e.g., when multi-service mobile platform 100 is in a walking stateas shown in FIG. 14) may be achieved with the following operations,which may be concurrently performed with respect to each of the fourwalking feet:

-   -   a. the upper box structures are raised to the mechanical limit        and are rigidly fixed relative to the lower box structures to        prevent lowering (e.g., pinned in place);    -   b. multi-service mobile platform 100 rests on the ground,        walking feet are on the ground in the aligned position        (operational state);    -   c. the main hydraulic cylinders are lifted slightly to raise the        base plates off the ground, while the lower box structures        remain on the ground;    -   d. the sliding plates are actuated to the offset position, which        moves the base plate when in the air, such that the choice of        the offset position determines the direction and step length of        the next step distance;    -   e. main hydraulic cylinders are lowered to place the base plates        with the sliding plates in the offset position on the ground and        extended further in height to raise multi-service mobile        platform 100 off the ground, resting only on the base plates;    -   f. on the ground, the sliding plates are actuated to displace        multi-service mobile platform 100 by the next step distance        towards the base plates, bringing the sliding plates in the        aligned position; and    -   g. retracting the main hydraulic cylinders until multi-service        mobile platform 100 again rests on the ground.

Accordingly, the operations b. through g. above may be repeated to movemulti-service mobile platform 100 without having to disassembleoperational components, including moving base platform structure 120with the lower box structure and the upper box structure and anyattached elements in place. It is noted that certain components may bestowed or removed prior to operation a in preparation for walking.Additionally, certain components, such as CT reel trailer 1012 (seeFIGS. 11C, 11D) may be functionally attached to base platform structure120, but may be independent components on the ground that may move alongwith base platform structure 120 during walking. Again, because of themodular and integrated design of multi-service mobile platform 100, asdescribed herein, the main hydraulic cylinders with the walking feet mayenable movement or translation of multi-service mobile platform 100 inany direction in an assembled and at least partially operational state,which is desirable.

The walking movement of multi-service mobile platform 100 mayaccordingly enable access to multiple wellheads that may be in proximityto one another, such as is commonly arranged at the surface of a wellpad. The ability to move multi-service mobile platform 100 from onewellhead to any adjacent wellhead in an assembled and operational stateis a desirable feature that provides economic and safety benefits byreducing the time, effort, and personnel for repositioning multi-servicemobile platform 100 to access a different wellhead. Additional safetybenefits may accrue as a result of eliminating various other operations,equipment, and congested work areas, as described previously. It isnoted that without the ability to position multi-service mobile platform100 with the walking movement, the time and effort to reposition wouldbe much greater because conventional rigs are not mobile and suchmovement would involve disassembling and reassembling structuralelements at each successive wellhead, even when adjacent wellheads arerelatively close together. In some implementations, base platformstructure 120, including the main hydraulic cylinders and the walkingfeet, may be a box-in-box structure, such as supplied by NOV, Inc., andmay be modified and adapted to construct multi-service mobile platform100, as described herein. In other implementations, base platformstructure 120 may be realized using a box-on-box structure (see alsoFIG. 15).

With derrick/rotary drive 122 and CT handler 126, which are aligned withthe well center, multi-service mobile platform 100 is enabled to supplyboth jointed pipe and coiled tubing for various well servicingoperations. During use, the coiled tubing injector associated with CThandler 126 may be mounted to the derrick (shown schematically inaggregate as derrick/rotary drive 122 in FIG. 1, see also derrick 610 inFIGS. 6 and 14, and CT injector 342 in FIG. 3). The coiled tubinginjector may be removed from a working position on the derrick and maybe placed on left auxiliary platform 125 (off-operator's side) when notin use, for example, using a crane arm mounted to the derrick (see alsoleft auxiliary platform 125 in FIGS. 3 and 4) While the rotary drive canmove vertically on the well-center along the derrick using hydraulics ora system of pulleys (see also draw works 320, FIG. 5) fixed to baseplatform structure 120, the rotary drive is fixed to the derrick, whichis hoisted at a fixed position on a working surface of base platformstructure 120.

With the inclusion of snubbing unit 128 along with the other elementsdescribed herein, multi-service mobile platform 100 may provide variouswell servicing functionality in a single rig, including coiled tubing,jointed pipe, snubbing, and wireline services. Multi-service mobileplatform 100 is configured for rapid delivery and installation, usingstandard truck loads to deliver and install various components onto baseplatform structure 120. In typical implementations, multi-service mobileplatform 100 may be installed for use at a well head within aboutapproximately twelve (12) hours, which is very fast compared toconventional well servicing equipment and is, therefore, economicallydesirable. As will be described in further detail herein, multi-servicemobile platform 100 may be enabled to move as a self-propelled, walkingstructure between wellheads in an assembled and operational state.

In FIGS. 2A through 14, various depictions and views of multi-servicemobile platform 100 in various states of assembly are shown and aredescribed below. Although the depictions of multi-service mobileplatform 100 may appear realistic in 3-dimensions, the depictions areintended to be schematic in nature and are not necessarily drawn toscale or perspective. Therefore, it will be understood that variouselements, connections, lines, fittings, fasteners, hinges, pins, etc.and some smaller details may be omitted from the depictions fordescriptive purposes, which are intended to describe elements ofmulti-service mobile platform 100 in various operational states with aclear view of the indicated elements. Due to the complex geometric andmulti-level nature of multi-service mobile platform 100, certainelements may be obstructed from any given view, and different views areaccordingly shown to give an overall description. The equipment andstructural elements in the depictions of multi-service mobile platform100 shown and described below are also shown in schematic form, but areintended to represent various different kinds of operational equipmentand structural elements, as may be used for well servicing operations.In the description below and in FIGS. 2A through 14, certain elementsmay be repeated and may be shown from different perspectives or views.For example, a derrick is depicted that is intended to be operable andsuitably aligned with the wellhead, but may appear out of alignment withthe wellhead in various perspectives or views. Although certain elementsare referenced with an element number in any one or more of the figures,a depicted element may remain without the element number (usually in asubsequent figure) in certain figures for descriptive clarity and forpurposes of descriptive context.

Referring now to FIG. 2A, a base platform structure 200-1 is shown in aperspective view and may comprise at least certain portions of baseplatform structure 120 referenced previously with respect to FIG. 1. InFIG. 2A, base platform structure 200-1 is depicted in an installed statefor use with multi-service mobile platform 100, yet without variouselements and auxiliary platforms, which are omitted to provide a clearerview for descriptive purposes. As shown in FIG. 2A, base platformstructure 200-1 is comprised of a right portion 210 referenced as theoperator's side, and a left portion 212 referenced as the off-operator'sside. Each of right portion 210 and left portion 212 is associated witha corresponding portion of the work floor of multi-service mobileplatform 100, which forms a top surface, respectively as shown (see alsoFIG. 3).

As shown in FIG. 2A, each of right portion 210 and left portion 212respectively comprise an top box 226 (also referred to as an upperlevel) and a bottom box 228 (also referred to as a lower level).Specifically, right portion 210 comprises top box 226-1 and bottom box228-1, while left portion 212 comprises top box 226-2 and bottom box228-2. In normal operational states, bottom boxes 228 remain on theground while top boxes 226 can be lowered or raised in unison, such thattop box 226 encloses and mates with bottom box 228, while top boxes 226generally remain at the same height. Accordingly, four main liftcylinders 230 are provided to enable the raising and lowering of topboxes 226 relative to bottom boxes 228. Specifically, right portion 210comprises main lift cylinders 230-1 and 230-2, while left portion 212comprises main lift cylinders 230-3 and 230-4. Also visible in FIG. 2Aare walking feet 242, which are used as a static base for eachrespective main lift cylinder 230, as in the operational state ofmulti-service mobile platform 100.

In base platform structure 200-1, top boxes 226 and bottom boxes 228 aredepicted in a fixed, installed position corresponding to an operationalstate of multi-service mobile platform 100. For example, top boxes 226may be pinned to bottom boxes 228 to prevent raising and lowering, andto relieve main lift cylinders 230 from carrying the weight ofmulti-service mobile platform 100. Additionally, various elements havebeen installed within top boxes 226, for example, that may preventlowering or raising and may be removed to enable lowering or raising,such as stairs 218-1 and 218-2, BOP access platforms 220, and internalplatforms 221.

Visible at the top surface of each of right portion 210 and left portion212 are two derrick mounts 240, which are used to support a derrick 610(not shown in FIG. 2A, see FIG. 6A). Accordingly, right portion 210 andleft portion 212 are arranged symmetrically and in a specified positionabout a location for a wellbore, over which derrick 610 may be centeredand aligned using derrick mounts 240. Also visible at the top surface ofeach of right portion 210 and left portion 212 are hatches 219-1 and219-2, which respectively provide access to stairs 218-1 and 218-2.

As shown in FIG. 2A, base platform structure 200-1 may further include ahydraulic bulkhead 214-2, shown on left portion 212. Hydraulic bulkhead214-2 may be internally connected within base platform structure 120 tohydraulic pressure unit 118 and may provide break out connections forexternal equipment, such as ground equipment. Because of the internalhydraulic connections that may be routed along various members of baseplatform structure 200-1 to hydraulic bulkhead 214-2, the internalhydraulic connections (not visible) are not exposed and do not take upprecious floor space used by personnel, which is desirable for safe andorderly operation. Also shown with base platform structure 200-1 areoutriggers 216, which may be structural elements used to stabilizemulti-service mobile platform 100 when installed and in an operationalstate. In certain implementations, outriggers 216 may be removed orstowed (such as by folding on a hinge) when multi-service mobileplatform 100 is moved by walking, and may be reinstalled at theoperational location. Also depicted in FIG. 2A are various mountingplates 250 at external edges of top boxes 226. Mounting plates 250 maybe used for attaching various different auxiliary platforms to top boxes226, as will be described in further detail below. Mounting plates 250may include a hole for a fastener, such as a pin, that mates orpenetrates with a corresponding plate with a hole in the auxiliaryplatform, in order to secure the auxiliary platform to the top box 226.

Absent from FIG. 2A are work floor panels 324 and 326 (see FIG. 3), alsoreferred to as leaves or floor sections, between the top surfaces ofright portion 210 and left portion 212, which are removed to enable aview of a BOP 222, shown in a stowed position in base platform structure200-1. Also shown in FIG. 2A are BOP access platforms 220 in a deployedhorizontal state and usable for personnel to access the wellhead areaand BOP 222. BOP access platforms 220 may be foldable to an uprightposition (or removable) for stowing or to enable other equipment to bemoved into place.

In FIG. 2A, BOP 222 is mounted on a BOP frame 244 that runs on BOP rails224, which enable BOP frame 244 to slide over BOP crossbeams 238 thatsupport the weight of BOP 222 and BOP rails 224 (BOP frame 244 obscuredfrom view in FIG. 2A, see FIG. 2C). As shown, BOP crossbeams 238 may runin an open side of beam rails 236, which are respectively provided alongan inner lower edge of top boxes 226. Specifically, beam rail 236-1 isformed or attached at the inner lower edge of top box 226-1, while beamrail 236-2 is formed or attached at the inner lower edge of top box226-2. Furthermore, beam rails 236 may be open at a rear end (notvisible in FIG. 2A) from where the entire BOP assembly, including BOPcrossbeams 238, BOP rails 224, and BOP 222, may be installed by havingBOP crossbeams 238 slide into beam rails 236. For example, the BOPassembly may be delivered on a truck bed, and as top boxes 226 areraised such that BOP crossbeams 238 on the truck bed are at the sameheight as beam rails 236 on top boxes 226, the BOP assembly may beunloaded directly from the truck bed onto beam rails 236.

FIG. 2B shows a base platform structure 200-2 that is substantiallysimilar to base platform structure 200-1 in FIG. 2A, but shown from adifferent perspective. Accordingly, the elements referenced above withrespect to FIG. 2A are shown, where possible, in FIG. 2B. Also visiblein FIG. 2B is hydraulic bulkhead 214-1 on bottom box 228-1, which mayprovide external hydraulic lines to the operator's side (right side) ofmulti-service mobile platform 100.

In FIG. 2C, a right portion cut-away view 200-3 of right portion 210 andthe BOP assembly are shown. Various elements described and shownpreviously with respect to FIGS. 2A and 2B are visible in right portion210 in FIG. 2C. In particular, FIG. 2C shows the BOP assembly in aposition after delivery and introduction into beam rail 236-1 (beam rail236-2 is not visible in FIG. 2C). Specifically, BOP 222 is mounted onBOP frame 244 that runs in BOP rails 224 at a rearward position.

In FIG. 2D, a right portion cut-away view 200-4 of right portion 210 andthe BOP assembly are shown in a substantially similar view and manner asin FIG. 2C above. Various elements described and shown previously withrespect to FIGS. 2A and 2B are visible in right portion 210 in FIG. 2D.In particular, FIG. 2D shows BOP 222 and BOP frame 244 moved forwardinto position from the delivery position shown in FIG. 2C.

In FIG. 2E, a right portion cut-away view 200-5 of right portion 210 andthe BOP assembly are shown in a substantially similar view and manner asin FIG. 2C above. Various elements described and shown previously withrespect to FIGS. 2A and 2B are visible in right portion 210 in FIG. 2E.In particular, FIG. 2E shows BOP 222 and BOP frame 244 being tilted intoan operational position, as would be the case over a wellhead forinstallation of BOP 222. Because BOP rails 224 and BOP crossbeams 238may remain with multi-service mobile platform 100, BOP 222 mounted onBOP frame 244 may be easily stowed and reinstalled when a move from onewellhead to another wellhead is made. For example, personnel may performwork on the wellhead or BOP from BOP access platform 220 or internalplatform 221.

In FIG. 2F, a left portion cut-away view 200-6 of left portion 212 isshown. Various elements described and shown previously with respect toFIGS. 2A and 2B are visible in left portion 212 in FIG. 2F. Although theBOP assembly is not shown in FIG. 2F, it will be understood that BOPcrossbeams 238 run in beam rail 236-2 that is located at an inner loweredge of top box 226-2.

In FIG. 2G, a top view 200-7 of right portion 210 and left portion 212and the BOP assembly are shown. Top view 200-7 corresponds to the BOPassembly position shown in FIG. 2D in right portion cut-away view 200-4.Various elements described and shown previously with respect to FIGS. 2Aand 2B are visible in top view 200-7 in FIG. 2G.

In FIG. 2H, a raised base platform structure 200-8 is shown. Variouselements described and shown previously with respect to FIGS. 2A and 2Bare visible in base platform structure 200-8 in FIG. 2H. As shown, baseplatform structure 200-8 may be used for wellheads that are elevatedabove ground level. In FIG. 2H, four supplemental boxes 260 are shownelevating bottom boxes 228 above the ground, corresponding to each ofthe four main lift cylinders 230. Specifically, in right portion 210,supplemental box 260-1 is used at main lift cylinder 230-1 andsupplemental box 260-2 is used at main lift cylinder 230-2, while inleft portion 212, supplemental box 260-3 is used at main lift cylinder230-3 and supplemental box 260-4 is used at main lift cylinder 230-4. Inparticular implementations, bottom boxes 228 may be installed upon andattached to supplemental boxes 260 when bottom boxes 228 are delivered.Furthermore, it is noted that main lift cylinders 230 may be implementedin a variety of configurations. For example, the working liftingdistance of main lift cylinders 230 may vary in different embodiments.In certain implementations, main lift cylinders 230 may be telescopic toenable a larger working lifting distance (height), for example, that isgreater than a sum of heights of bottom box 228 and top box 226.

In FIG. 2I, a base platform structure 200-9 is shown with top boxes 226partially lowered. Various elements described and shown previously withrespect to FIGS. 2A and 2B are visible in base platform structure 200-9in FIG. 2I. As shown in base platform structure 200-9, internal elementsin top boxes 226 have been removed, such as internal stairs 218, toenable lowering of top box 226 to enclose bottom box 228. As evident inFIG. 2I, top boxes 226 may be lowered to any desired height with respectto bottom boxes 228. As described above, top boxes 226-1 and 226-2 maybe kept at the same height during raising and lowering to ensure thatall platforms and work floors remain level in multi-service mobileplatform 100. In particular, it is noted that BOP 222 is also raised andlowered along with top boxes 226 in the stowed position shown in FIG.2I.

Referring now to FIG. 3, a work floor view 300 is shown as a perspectiveview from the rear and may comprise at least certain portions ofmulti-service mobile platform 100, including a panorama cabin 310 (alsoreferred to as a control cabin or office container, etc.), as disclosedherein. Various elements described and shown previously with respect toFIGS. 2A and 2B are visible in work floor view 300 in FIG. 3. In FIG. 3,multi-service mobile platform 100 is depicted in a partially installedstate in which certain elements may be omitted to provide a clearer viewfor descriptive purposes. For example, derrick 610 is omitted from workfloor view 300 so as not to obscure the view of elements shown in FIG.3. As shown in FIG. 3, right portion 210 is visible as a portion of thework floor on the operator's side, while left portion 212 is visible asa portion of the work floor on the off-operator's side.

As shown in work floor view 300, an opening 332 is aligned with thewellhead below and forms the center of the work floor. Around opening332 in the work floor, a rotary panel 330 is in place where a rotarytable may be installed. The work floor between right portion 210 andleft portion 212 has been filled with four (6) work floor panels,including two (2) rear work floor panels 324, two (2) central work floorpanels 326, and two (2) front work floor panels 325, which may be steelleaves that are hingeably attached to the work floor. The work floorpanels 324 and 326 may be individually installed for flexible allocationof the work floor, as desired. The work floor panels 324 and 326 may beenabled for lifting up to access or view the space below, as desired.

In FIG. 3, at the outer respective sides of right portion 210 and leftportion 212, different auxiliary platforms are shown attached tomulti-service mobile platform 100. Specifically, panorama cabin platform124 is shown attached to right portion 210 on the operator's side andincludes a panorama cabin 310, hydraulic pressure unit 118, andaccumulator tanks 410 (see also FIG. 4). Accumulator tanks 410 are shownon right portion 210 in proximity to hydraulic pressure unit 118 toprovide hydraulic pressure storage or reserves, such as a pressurereserve capable of actuating BOP 222 at short notice in an emergency.(Delivery and installation of panorama cabin platform 124 is shown anddescribed in further detail with respect to FIGS. 13A and 13B.)

As depicted, panorama cabin 310 may be similar to a building containerused to house workstations for personnel in a conventional drilling rig,but is equipped with panorama windows 312 that extend from the roof tothe operator's side floor facing the work floor. Additionally, thepanorama windows may wrap around an end portion 310-1 of panorama cabin310 in order to extend visibility at the wellhead and to other groundequipment, such as jointed pipe handler 114 and CT handler 126 (see alsoFIG. 14). In this manner, panorama cabin 310 may enable personnel insidepanorama cabin 310 to view nearly all activity and ongoing operations,with a continuous view extending from the rotary drive at the top ofderrick 610 down to the work floor, and even further below to BOP accessplatform 220, for example, when at least one work floor panel has beenremoved. Additionally, panorama cabin 310 may itself be independentlyadjusted in height using cabin lifts 616 (not visible in FIG. 3, seeFIG. 6) relative to the work floor for specific situations and workfloor configurations. Cabin lifts 616 may comprise at least onehydraulic cylinder enabled to raise and lower panorama cabin 310.

Additionally, panorama cabin 310 may provide integrated control systemsin a common location to operate various equipment included withmulti-service mobile platform 100, which may be substantially differentfrom conventional drilling environments, where each type of wellservicing equipment may be associated with an individual dedicatedcontrol system that is also individually installed and removed with thecorresponding well servicing equipment. Specifically, panorama cabin 310may be a central hub for various electrical wiring for signals and powersupplies to different distributed equipment in multi-service mobileplatform 100. As a central hub, panorama cabin 310 may itself housevarious control systems (e.g., programmable logic controllers orcomputer systems) in a common location from where different elementsincluded in multi-service mobile platform 100 are centrally controlled.Accordingly, panorama cabin 310 may include at least one workspace for acontrol operator, such as a workstation that has a user interface to oneor more of the control systems to enable monitoring, supervision,response, communication, actuation, programming, scheduling of variouscontrol tasks, among others, associated with drilling equipment. Thecontrol systems housed in panorama cabin 310 may include control systemsfor: derrick/rotary drive 122, draw works 320, snubbing unit 128, CThandler 126, wireline unit 112, hydraulic pressure unit 118, electricalpower unit 116, jointed pipe handler 114, among others. In particularembodiments, panorama cabin 310 may include a first workstation tocontrol derrick/rotary drive 122, draw works 320, and snubbing unit 128,as well as a second workstation to control CT handler 126 and wirelineunit 112. Additionally, panorama cabin 310 may have a heating,ventilation, and air conditioning (HVAC) system in order to regulatetemperature in indoor spaces where operators are located (i.e., at theworkstations) as well as to cool the common electrical equipment housedwithin panorama cabin 310, which may include network equipment tofacilitate networking and communication among the various workstationsand control systems. It is noted that a particular aspect ofmulti-service mobile platform 100 is the inclusion of electrical powerunit 116, which may be used to power equipment (e.g., the workstations,control equipment, network equipment, etc.) in panorama cabin 310 aswell as other drilling equipment. For example, electrical power unit 116may serve as a primary power source for at least derrick/rotary drive122, CT handler 126, snubbing unit 128, wireline unit 112, and panoramacabin 310. In this manner, electrical connections, such as for power andelectrical signals, may be reduced, as compared with an externalelectrical power source, and the electrical connections may be housed inchannels that are integrated into structural members of multi-servicemobile platform 100, such as base platform structure 120.

At the off operator's side in FIG. 3, left auxiliary platform 125 isshown installed to left portion 212 to extend the work floor. Leftauxiliary platform 125 may be used to stow equipment for ease of access,such as a coiled tubing (CT) injector 342 and snubbing unit 128. Alsoshown installed on left auxiliary platform 125 is a choke manifold 344(also referred to as a pumping manifold), which may be used for pumpingfluids into or out of the wellhead. Flexible pressure lines (not shown)may be connected to choke manifold 344 and may be stowed within leftportion 212, for example. The flexible pressure lines may be used toconnect choke manifold 344 to the BOP 222 and to an external pump orother external equipment on the ground (see also FIG. 10).

As shown in work floor view 300, at the front of work floor panel 326 onthe off-operator's side, floor rails 345 have been installed that leadfrom left auxiliary platform 125 and over left portion 212 towardsopening 332. Floor rails 345 are enabled to receive a trolley 343 thatis shown supporting CT injector 342 and snubbing unit 128 stowed at leftauxiliary platform 125. In this manner, CT injector 342 may be movedinto position for use near opening 332 to access the wellhead with CT,and may be easily moved to the side by hand for rapid stowing away fromopening 332, to keep opening 332 clear for other servicing operationswithout undue effort or delay. Although CT injector 342 and snubbingunit 128 are shown as separate equipment, it will be understood that insome embodiments, the mechanical functionality of CT injector 342 andsnubbing unit 128 may be combined into a single apparatus that canalternate between pipe service and CT service without removal from anoperational location or during use.

Also shown in work floor view 300 attached to left portion 212, at alower outer edge of top box 226-2 (not visible in FIG. 3) is a lowerleft auxiliary platform 338, which is used to stow a drill line spool336.

Still further shown in FIG. 3 attached to right portion 210 and leftportion 212 at rear bottom edges of top boxes 226 is rear auxiliaryplatform 130. Rear auxiliary platform 130 is shown with a backuphydraulic power unit 316 and a draw works 320. Backup hydraulic powerunit 316 may be a redundant unit for hydraulic power unit 118. Stairs318 may lead from panorama cabin platform 124 to rear auxiliary platform130, which may have additional stairs to the ground (not visible in FIG.3). In particular, hydraulic power unit 118 may be configured forefficient and scalable operation by including a plurality of hydraulicpumps (not shown) that are activated according to an actual pressuredemand for hydraulic fluid in multi-service mobile platform 100. Forexample, when relatively little hydraulic pressure is used inmulti-service mobile platform 100, a single one of the hydraulic pumpsmay be activated for sufficient supply to save power or fuel. As thepressure demand for hydraulic fluid increased, additional ones of thehydraulic pumps included with hydraulic power unit 118 may be activated,as indicated, such that at maximum pressure demand for hydraulic fluid,all hydraulic pumps are activated.

At a front of the work floor in work floor view 300, pipe stand racks328 are installed on each side, with a pipe stand rack 115-1 on theoperator's side, and a pipe stand rack 115-2 on the off-operator's side,shown on work floor panels 325 and 326, for example. As shown, pipestand racks 115 are enabled to hold approximately 30 foot pipe sections.It is noted that jointed pipe handler 114 in conjunction with derrick610 may be enabled to handle single, double, or triple pipe sections ina single pipe feed operation to improve efficiency of pipe service bymulti-service mobile platform 100.

Referring now to FIG. 4, a work floor view 400 is shown as a perspectiveview from the front and may comprise at least certain portions ofmulti-service mobile platform 100, including left auxiliary platform125, as disclosed herein. Various elements described and shownpreviously with respect to FIGS. 2A, 2B, and 3 are visible in work floorview 400 in FIG. 4. In FIG. 4, multi-service mobile platform 100 isdepicted in a partially installed state in which certain elements may beomitted to provide a clearer view for descriptive purposes. For example,derrick 610 is omitted from work floor view 400 so as not to obscure theview of elements shown in FIG. 4. As shown in FIG. 4, left portion 212is visible as a portion of the work floor on the off-operator's side.

In work floor view 400, a slightly different arrangement at leftauxiliary platform 125 is shown as compared to work floor view 300 inFIG. 3. Specifically, in FIG. 4, floor rails 345 are shown conveying CTinjector 342 on trolley 343. Also in FIG. 4, snubbing unit 128 is stowedon left auxiliary platform 125, where choke manifold 344 is alsolocated. Also visible in FIG. 4 is wireline unit 112, which is locatedon left portion 212 and left auxiliary platform 125 and is angled tohave a direct line of access to opening 332 that is aligned with thewellhead (not visible in FIG. 4). Also visible in FIG. 4 are frontstairs 412, which may be used to access the ground and may provide apathway to safety for personnel in an emergency.

Referring now to FIG. 5, a work floor view 500 is shown as a perspectiveview from the rear and may comprise at least certain portions ofmulti-service mobile platform 100, including rear auxiliary platform130, as disclosed herein. Various elements described and shownpreviously with respect to FIGS. 2A, 2B, 3, and 4 are visible in workfloor view 500 in FIG. 5. In FIG. 5, multi-service mobile platform 100is depicted in a partially installed state in which certain elements maybe omitted to provide a clearer view for descriptive purposes. Forexample, derrick 610 is omitted from work floor view 500 so as not toobscure the view of elements shown in FIG. 5. As shown in FIG. 5, rearauxiliary platform 130 is visible as a portion of the work floor at therear, as described previously, and is shown with backup hydraulic powerunit 316, draw works 320, along with electrical power unit 116. Alsoshown are stairs 318 leading from panorama cabin platform 124 to rearauxiliary platform 130, as well as stairs 510 leading from rearauxiliary platform 130 to the ground.

Referring now to FIG. 6A, a work floor view 600 is shown as aperspective view from the front and may comprise at least certainportions of multi-service mobile platform 100, including derrick 610, asdisclosed herein. Various elements described and shown previously withrespect to FIGS. 2A, 2B, 3, and 4 are visible in work floor view 600 inFIG. 6A. In FIG. 6A, multi-service mobile platform 100 is depicted in apartially installed state in which certain elements may be omitted toprovide a clearer view for descriptive purposes. As shown in FIG. 6A, CTinjector 342 has been moved using trolley 343 (not visible in FIG. 6A,see FIG. 4) along floor rails 345 to a working proximity to snubbingunit 128 installed on BOP 222, and is shown being raised by a crane arm620 installed on derrick 610. Crane arm 620 may be enabled to hoist CTinjector 342 (or snubbing unit 128) into a working location at BOP 222.Also visible in FIG. 6A due to removal of certain portions of the workfloor for descriptive purposes is BOP 222, on which snubbing unit 128has been installed for operation at the wellhead.

Also visible in work floor view 600 is derrick 610 mounted on derrickmounts 240 and an auto-torque torque wrench 618. In particularimplementations, derrick 610 may be a telescopic derrick havingadjustable height that is pinned to derrick mounts 240 on the work floorof multi-service mobile platform 100, as shown. The height adjustmentmay be performed using draw works 342 (not visible in FIG. 6A, see FIG.5) to raise and lower derrick 610 when telescopic. Furthermore, theadjustable height of derrick 610 may be combined with crane arm 620attached to derrick 610 that may be used for lifting equipment to andfrom the working area of the wellhead at opening 330 to which derrick610 is aligned, such as snubbing unit 128 and CT injector 342. Also,derrick 610 itself may serve or provide a tie-off point for CT injector342 when in use, to support an upright position of CT injector 342, andthe tie-off point may also be adjustable in height, or may provideselection among a plurality of specific heights. In FIG. 6A, panoramacabin platform 124 is shown with panorama cabin 310 being raised usingcabin lifts 616 at the operator's side and a front panorama windowportion 312-1 of panorama windows 312 that provides a full working viewof the wellhead and surroundings is also visible.

Referring now to FIG. 6B, a work floor view 601 is shown as aperspective view from the front and may comprise at least certainportions of multi-service mobile platform 100, including derrick 610, asdisclosed herein. Various elements described and shown previously withrespect to work floor view 600 in FIG. 6A are visible in work floor view601 in FIG. 6B. As shown in FIG. 6B, CT injector 342 has been movedusing trolley 343 (not visible in FIG. 6A, see FIG. 4) along floor rails345 to a working position installed on BOP 222, and is shown enabled forfeeding CT 612 (not shown) to BOP 222. Meanwhile, crane arm 620 haslifted snubbing unit 128 back onto trolley 343 along floor rails 345 forstowing on left auxiliary platform 125.

Referring now to FIG. 7, a view 700 of pipe handling using jointed pipehandler 114 comprising a robotic pipe arm 710 and pipe bins 712 is shownas a perspective view from the front and may comprise at least certainportions of multi-service mobile platform 100, as disclosed herein.Various elements described and shown previously with respect to FIGS.2A, 2B, 3, 4, 5, 6A, and 6B are visible in view 700 in FIG. 7. In FIG.7, multi-service mobile platform 100 is depicted in a partiallyinstalled state in which certain elements may be omitted to provide aclearer view for descriptive purposes.

As shown in FIG. 7, robotic pipe arm 710 has been delivered as externalequipment to multi-service mobile platform 100 and has been positionedfor use between pipe stand racks 115-1 and 115-2. For example, jointedpipe handler 114 may itself be a mobile unit that operates from a truckbed or trailer, as shown. In view 700, it may be assumed that roboticpipe arm 710 has previously unloaded pipe bins 712-1 and 712-2 into pipestand racks 115-1 and 115-2, respectively, which still have a supply ofpipe. Accordingly, as shown, robotic pipe arm 710 may operating to feeda pipe 714 into pipe stand rack 115, and may be assisted by the rotarydrive in this process. Pipe 714 may be attached using auto-torque torquewrench 618, and may be lowered into BOP 222 using the rotary drive anddraw works 320 (not visible in FIG. 7). It is noted that other equipment(not shown) may also be used to work pipe 714 in differentimplementations. For example, a pair of power tongs (not shown) may beused to handle or work pipe 714. Draw works 320 may raise and lower therotary drive from within derrick 610 and use a system of pulleys on thework floor with the drill line. It will be understood that jointed pipehandler 114 may also be used with snubbing unit 128, in variousimplementations or configurations of multi-service mobile platform 100.In FIG. 7, crane arm 620 is shown in a stowed configuration at a side ofderrick 610.

Referring now to FIG. 8, a wellhead view 800 of a wellhead 810 is shownas a front view with BOP 222 and with an underground sectional view andmay comprise at least certain portions of multi-service mobile platform100, as disclosed herein. Various elements described and shownpreviously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, and 6B are visiblein wellhead view 800 in FIG. 8. In FIG. 8, multi-service mobile platform100 is depicted in a partially installed state in which certain elementsmay be omitted to provide a clearer view for descriptive purposes. InFIG. 8, wellhead 810 is shown recessed into the ground such that a topof a main valve 812 of wellhead 810 is approximately at ground level. Inthe configuration shown in wellhead view 800, BOP 222 is used withsnubbing unit 128.

Referring now to FIG. 9, an off-operator's side view 900 is shown as afront perspective with wireline unit 112 and may comprise at leastcertain portions of multi-service mobile platform 100, as disclosedherein. Various elements described and shown previously with respect toFIGS. 2A, 2B, 3, 4, 5, 6A, and 6B are visible in off-operator's sideview 900 in FIG. 9. In FIG. 9, multi-service mobile platform 100 isdepicted in a partially installed state in which certain elements may beomitted to provide a clearer view for descriptive purposes. In FIG. 9,wireline unit 112 is shown stowed at left auxiliary platform 125, asshown and described previously, while lower left auxiliary platform 338is shown stowing drill line spool 336. Also visible in FIG. 9 is CTinjector 342 in a stowed location on trolley 343 and moved to a standbyposition along floor rails 345

Referring now to FIG. 10, a view 1000 of external ground equipment isshown as a perspective view from a distance and may comprise at leastcertain portions of multi-service mobile platform 100, as disclosedherein. Various elements described and shown previously with respect toFIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in view 1000 in FIG.10. In FIG. 10, multi-service mobile platform 100 is depicted in apartially installed state in which certain elements may be omitted toprovide a clearer view for descriptive purposes.

As shown in view 1000, multi-service mobile platform 100 is used in asimilar manner as shown with respect to FIG. 7 for pipe service. Forexample, in view 1000, jointed pipe handler 114 may be using snubbingunit 128 (not visible in FIG. 10) in a configuration similar to thatshown in FIGS. 6A and 8. Also visible in view 1000 is a pumping unit1010, which may be an external pumping system that is connected to chokemanifold 344 (pumping connections are omitted in FIG. 10 for descriptiveclarity). Also shown in FIG. 10 is a CT reel trailer 1012, whichtogether with CT injector 342 may comprise CT handler 126 referencedpreviously with respect to FIG. 1. CT reel trailer 1012 may provide asupply of CT (not shown in FIG. 10) and may be positioned nearby tomulti-service mobile platform 100 in preparation for a transition frompipe service to CT service. Because jointed pipe handler 114 and CT reeltrailer 1012 are themselves mobile units, repositioning for transitionsbetween pipe service and CT service is made possible in a relativelyshort time with the features described herein associated withmulti-service mobile platform 100. In FIG. 10, also shown is pipesection 714 installed at the wellhead for work.

Referring now to FIG. 11A, a top view 1100 depicts walking andpositioning of multi-service mobile platform 100, as disclosed herein.Various elements described and shown previously with respect to FIGS.2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in top view 1100 in FIG. 11A.In FIG. 11A, multi-service mobile platform 100 is depicted in apartially installed state in which certain elements may be omitted toprovide a clearer view for descriptive purposes.

In top view 1100, multi-service mobile platform 100 is shown in a mobilestate (see also FIG. 14) in which multi-service mobile platform 100 hasbeen cleared from any ground connections or points of contact, exceptfor bottom boxes 228. For example, in the walking state of multi-servicemobile platform 100, outriggers 216 (not visible in FIG. 11) have beenstowed or removed, external lines to equipment such as to pumping unit1010 or CT reel trailer 1012 have been removed, pipe stand racks 115have been removed, and BOP 222 has been tilted upwards on BOP rails 224,as shown in FIG. 2A, and furthermore, top boxes 226 have been pinned ina raised position to bottom boxes 228.

In the walking state of multi-service mobile platform 100 shown in FIG.11A, walking may then be performed, as described above, using main liftcylinders 230 and walking feet 242, in a direction 1102, towards a wellpad 1110 comprised of two rows of wellheads, including a first wellhead1112. With respect to front direction 140 in FIG. 1, direction 1102 maybe a rear direction, such that multi-service mobile platform 100 isshown walking ‘backwards’ in FIG. 11A opposite to front direction 140.As multi-service mobile platform 100 approaches first wellhead 1112, thewalking continues until alignment of BOP 222 with first wellhead 1112 isattained. Then, multi-service mobile platform 100 can be madeoperational for various well service operations on first wellhead, asdescribed herein.

Referring now to FIG. 11B, a top view 1101 depicts pipe service ofmulti-service mobile platform 100 at first wellhead 1112 (not visible inFIG. 11B) of well pad 1110, as disclosed herein. Various elementsdescribed and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5,6A, 6B, and 7 are visible in top view 1101 in FIG. 11B. In FIG. 11B,multi-service mobile platform 100 is depicted in a partially installedstate in which certain elements may be omitted to provide a clearer viewfor descriptive purposes. In top view 1101, multi-service mobileplatform 100 is shown in a pipe service state, similar to FIG. 10 above,in which jointed pipe handler 114 is performing pipe service. Also intop view 1101, CT injector 342 has been moved to a working proximityposition along floor rails 345 and is in a location that can be accessedfor hoisting by crane arm 620.

Referring now to FIG. 11C, a top view 1102 depicts CT service ofmulti-service mobile platform 100 at first wellhead 1112 (not visible inFIG. 11C) of well pad 1110, as disclosed herein. Various elementsdescribed and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5,6A, 6B, and 7 are visible in top view 1102 in FIG. 11C. In FIG. 11C,multi-service mobile platform 100 is depicted in a partially installedstate in which certain elements may be omitted to provide a clearer viewfor descriptive purposes. In top view 1102, multi-service mobileplatform 100 is shown in a CT service state, in which jointed pipehandler 114 is has been moved to the side, and CT handler 126 isperforming CT service. Specifically, CT reel trailer 1012 is feeding CT1120 to CT injector 342, which may or may not employ snubbing unit 128below (not visible).

Referring now to FIG. 11D, a top view 1103 depicts a rapid change-offbetween pipe and CT service of multi-service mobile platform 100 atfirst wellhead 1112 (not visible in FIG. 11D) of well pad 1110, asdisclosed herein. Various elements described and shown previously withrespect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in top view1103 in FIG. 11D. In FIG. 11D, multi-service mobile platform 100 isdepicted in a partially installed state in which certain elements may beomitted to provide a clearer view for descriptive purposes. In top view1103, multi-service mobile platform 100 is shown subsequent to top view1102 in FIG. 11C, for a transition from CT service to pipe service.Specifically, CT reel trailer 1012 has been moved back but has remainedconnected via CT 1120 to CT injector 342, which has been placed ontrolley 343 and moved to a standby position along floor rails 345.Meanwhile, jointed pipe handler 114 has been moved back into a workingposition, albeit at an angle, but yet still accessible to pipe standracks 115. Thus, as top view 1103 shows, multi-service mobile platform100 is enabled for rapid change-off between pipe service and CT service,as desired.

Referring now to FIG. 12A, a view 1200 depicts pipe snubbing withmulti-service mobile platform 100 in a front perspective view. Variouselements described and shown previously with respect to FIGS. 2A, 2B, 3,4, 5, 6A, 6B, and 7 are visible in view 1200 in FIG. 12A. In FIG. 12A,multi-service mobile platform 100 is depicted in a partially installedstate in which certain elements may be omitted to provide a clearer viewfor descriptive purposes. In view 1200, multi-service mobile platform100 is shown in a pipe service state, similar to top view 1102 in FIG.11B above, but with a front perspective view to show BOP 222 supportingsnubbing unit 128 that is feeding pipe section 714. It is noted thatsnubbing unit 128 may be equipped with slip bowls or another tubingguide that expands and allows for full-bore access to the wellhead toenable running CT or any other type of tubular conduit or casing. Thus,in this manner, CT injector 342 may be used in conjunction with snubbingunit 128.

Referring now to FIG. 12B, a view 1201 depicts pipe snubbing withmulti-service mobile platform 100 in a rear perspective view. Variouselements described and shown previously with respect to FIGS. 2A, 2B, 3,4, 5, 6A, 6B, and 7 are visible in view 1201 in FIG. 12B. In FIG. 12B,multi-service mobile platform 100 is depicted in a partially installedstate in which certain elements may be omitted to provide a clearer viewfor descriptive purposes. View 1201 depicts multi-service mobileplatform 100 from a rear perspective view that shows rear auxiliaryplatform 130. Also visible in view 1201 are stairs 1210-1 and 1210-2which lead to the ground from rear auxiliary platform 130 to providesafe passages to the ground for personnel.

Referring now to FIG. 13A, a platform delivery and installationprocedure 1300 is illustrated in a perspective view with top boxes 226and bottom boxes 228 shown installed previously. Various elementsdescribed and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5,6A, 6B, and 7 are visible in view 1300 in FIG. 13A. As shown, procedure1300 is shown with the example of panorama cabin platform 124 beingdelivered and installed by truck to top box 226-1. However, it will beunderstood that the same basic procedure as described with respect toFIGS. 13A and 13B may be used with any other auxiliary platformsattached to top boxes 226 shown or described herein in a substantiallysimilar manner.

In FIG. 13A, top boxes 226 are shown in a vertical position such thatthe bottom of top box 226-1 is at the same height as the bottom ofpanorama cabin platform 124, shown being delivered on a truck bed 1310.Truck bed 1310 is positioned such that mounting plates 250 on top box226-1 (not visible in FIG. 13A) mate with a corresponding mechanicaldetention element on panorama cabin platform 124 to secure panoramacabin platform 124 to top box 226-1. Once secured, top boxes 226, alongwith panorama cabin platform 124, may be raised off truck bed 1310,which can then depart unloaded. The same procedure using varioustruckloads can be used to deliver and install other auxiliary platformsdisclosed herein, among other components of multi-service mobileplatform 100, including left auxiliary platform 125 and rear auxiliaryplatform 130.

In FIG. 13B, a platform delivery and installation procedure 1301 isillustrated in a perspective view with top boxes 226 and bottom boxes228 shown installed previously. Various elements described and shownpreviously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 arevisible in view 1301 in FIG. 13B. As shown, procedure 1301 is shown withthe example of panorama cabin platform 124 being delivered and installedby truck to top box 226-1. However, it will be understood that the samebasic procedure as described with respect to FIGS. 13A and 13B may beused with any other auxiliary platforms attached to top boxes 226 shownor described herein in a substantially similar manner. In procedure1301, panorama cabin platform 124 is attached to top box 226-1 and israised free from truck bed 1310, which has departed and is not shown.Also visible in FIG. 13B is mounting plate 250 which attaches to andsecures panorama cabin platform 124.

In FIG. 13C, a panorama cabin height adjustment procedure 1302 isillustrated in a perspective view with top boxes 226 and bottom boxes228 shown installed previously. Various elements described and shownpreviously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 arevisible in view 1302 in FIG. 13C. As shown, procedure 1302 is shown withthe example of panorama cabin platform 124 installed to top box 226-1,as shown in FIG. 13B. Then, in procedure 1302, panorama cabin 310 may beraised using cabin lifts 616 to a desired height, such as correspondingto the top of top box 226-1, which forms the work floor of multi-servicemobile platform 100. In FIG. 13C, panorama cabin 310 is shown in araised position for operation. It will be understood that panorama cabin310 may be raised or lowered from the shown position using cabin lifts616.

Referring now to FIG. 14, a front view 1400 depicts walking andpositioning of multi-service mobile platform 100 in a perspective view,as disclosed herein. Various elements described and shown previouslywith respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible infront view 1400 in FIG. 14. In FIG. 14, multi-service mobile platform100 is depicted in a partially installed state in which certain elementsmay be omitted to provide a clearer view for descriptive purposes.

In front view 1400, multi-service mobile platform 100 is shown in amobile state (see also FIG. 11A) in which multi-service mobile platform100 has been cleared from any ground connections or points of contact,except for bottom boxes 228. For example, in the walking state ofmulti-service mobile platform 100, outriggers 216 have been stowed orremoved, external lines to equipment such as to pumping unit 1010 or CTreel trailer 1012 have been removed, pipe 714 from pipe stand racks 115have been removed, and BOP 222 has been tilted upwards on BOP rails 224,as shown in FIG. 2A (not visible in FIG. 14), and furthermore, top boxes226 have been pinned in a raised position to bottom boxes 228.Additionally, stairs 1210-1 and 1210-2 leading to the ground are shownstowed in clearance from the ground, but still attached to multi-servicemobile platform, as in a potential condition for walking.

Referring now to FIG. 15, a perspective view of a base platformstructure 1500 is depicted. As shown, base platform structure 1500 mayrepresent an alternative to base platform structure 120. Instead ofhaving a top box enabled for being collapsed within a bottom box as inbase platform 120, base platform structure 1500 has a bottom box 1510that is fixed in position relative to top box 1512. Additionally, mainlift cylinders 1514 are located in bottom box 1510. As a result of thefeatures in base platform structure 1500, certain installation andattachment methods with respect to multi-service mobile platform 100 maybe performed in a different manner other than described herein usingtruckloads to deliver modular components and to install the modularcomponents. For example, a crane may be used in conjunction with baseplatform structure 1500 to install and fix modular components, such asvarious auxiliary platforms described herein. Base platform structure1500 may be enabled to walk multi-service mobile platform 100 using mainlift cylinders 1514 in a substantially similar manner as describedpreviously using ‘walking feet’.

Referring now to FIGS. 16A, 16B, and 16C, flowcharts of selectedelements of an embodiment of method 1600 for installing a multi-servicemobile platform, as disclosed herein, is depicted. Method 1600 may beperformed in the context of performing well servicing at a wellhead, asdescribed above. It is noted that certain operations described in method1600 may be optional or may be rearranged in different embodiments.

Method 1600-1 in FIG. 16A may begin at step 1610 by installing, at afirst location, a base platform structure. At step 1612, a firsthydraulic pressure unit is installed in proximity to the first locationto provide hydraulic pressure to at least one main lift cylinder(s) toenable the main lift cylinder(s) to raise and lower the top box withrespect to the bottom box. At step 1614, at least one work floor sectionis delivered to the first location and installed on the top box. At step1616, in any sequential order of loads to the first location, a firstload comprising a first auxiliary platform for coupling to the rear workfloor section, and for coupling to a first portion and a second portionof the top box, is delivered, including installing the rear auxiliaryplatform, where the rear auxiliary platform includes a backup hydraulicpressure unit, a draw works, and an electrical power unit. At step 1618,in any sequential order of loads to the first location, a second loadcomprising a BOP platform is delivered including installing the BOPplatform to a bottom edge at the first portion and the second portion ofthe top box. At step 1620, in any sequential order of loads to the firstlocation, a third load comprising a panorama cabin and a secondhydraulic pressure unit that couples to the first portion of the top boxis delivered, including installing the panorama cabin, where thepanorama cabin includes front, top, and end windows that provide aworking view of the work floor and a derrick installed on the workfloor. At step 1622, in any sequential order of loads to the firstlocation, a fourth load comprising a second auxiliary platform forcoupling to the second portion of the top box is delivered, includinginstalling the second auxiliary platform.

After step 1622, method 1600-1 may proceed to method 1600-2 in FIG. 16B,where, at step 1624, in any sequential order of loads to the firstlocation, a fifth load comprising the derrick is delivered, includinghoisting the derrick onto the work floor, where the derrick includes arotary drive, an auto torque wrench for pipe, and a crane arm, and thederrick is aligned with the wellhead when installed on the work floor.In some embodiments of step 1624, the derrick may be hoisted using drawworks 320. At step 1626, in any sequential order of loads to the firstlocation, a sixth load is delivered to the first location, where thesixth load comprises a snubbing unit. At step 1628, the snubbing unit islifted onto the second auxiliary platform. At step 1628, the snubbingunit may be lifted using a crane external to the multi-service mobileplatform. At step 1630, in any sequential order of loads to the firstlocation, a seventh load is delivered to the first location, where theseventh load comprises at least one pipe stand rack, includinginstalling the at least one pipe stand rack at a front portion of themulti-service mobile platform. At step 1632, in any sequential order ofloads to the first location, an eighth load is delivered to the firstlocation, where the eighth load comprises a pipe handler, includinginstalling the pipe handler adjacent to the at least one pipe standrack, and a ninth load is delivered to the first location, where theninth load comprises a pipe bin, including placing the pipe bin and thepipe handler adjacent to each other. At step 1634, in any sequentialorder of loads to the first location, a tenth load is delivered to thefirst location, where the tenth load comprises a CT injector.

After step 1634, method 1600-2 may proceed to method 1600-3 in FIG. 16C,where, at step 1636, the CT injector is lifted onto the second auxiliaryplatform. At step 1636, the CT injector may be lifted using a craneexternal to the multi-service mobile platform. At step 1638, in anysequential order of the loads to the first location, an eleventh load isdelivered to the first location, where the eleventh load comprises awireline unit, including lifting the wireline unit onto the top box. Atstep 1640, the multi-service mobile platform is connected to a firstwellhead at the first location. At step 1642, pipe service begins at thefirst wellhead. At step 1643, a decision is made whether to begin withcoiled tubing. When the result of step 1643 is NO, and no decision ismade to begin with coiled tubing, at step 1644, pipe service iscontinued, after which method 1600-3 loops back to step 1643. When theresult of step 1643 is YES, and a decision is made to begin with coiledtubing, at step 1646, the pipe handler is moved away from themulti-service mobile platform, where the pipe handler remains in aworking position. At step 1648, in any sequential order of loads to thefirst location, a twelfth load is delivered to the first location, wherethe twelfth load comprises a coiled tubing handler including a reel ofcoiled tubing, and including installing the coiled tubing handleradjacent to the pipe handler.

Referring now to FIG. 17, a flowchart of selected elements of anembodiment of method 1700 for transferring a multi-service mobileplatform, as disclosed herein, between wells is depicted. Method 1700may be performed in the context of performing well servicing at awellhead, as described above. It is noted that certain operationsdescribed in method 1700 may be optional or may be rearranged indifferent embodiments.

Method 1700 may begin at step 1710 by installing a multi-service mobileplatform at a first wellhead including connecting the first wellhead influid communication with the BOP and the pumping manifold. For example,in step 1710, BOP 222 (including associated elements in a BOP stack) maybe coupled in fluid communication with the first wellhead (such as to amaster valve for the first wellhead), and fluid lines from BOP 222 may,in turn, be connected to choke manifold 344. At step 1712 a decision ismade whether to move to a second wellhead. When the result of step 1712is NO, and no decision is made to begin with a second wellhead, method1700 loops back to step 1712. When the result of step 1712 is YES, and adecision is made to begin with a second wellhead, at step 1714, themulti-service mobile platform is prepared for walking, including liftingup the outrigger off the ground, disconnecting the first wellhead fromfluid communication with the pumping manifold, closing a master valvefor the first wellhead, disconnecting the BOP and the pumping manifoldfrom fluid communication with the first wellhead, and resting the BOP ona BOP platform at the lower level. At step 1716, the multi-servicemobile platform is walked to the second wellhead using the main liftcylinders with the upper level pinned to the lower level, includingcontrolling actuation of base plates and sliding plates respectivelyattached to each of the main lift cylinders. In step 1716, themulti-service mobile platform may be enabled to walk relatively straightin any direction, or along a given proscribed path that may be arbitraryand may include turns, curves, and rotations. At step 1718, actuation ofthe base plates and the sliding plates is controlled to align themulti-service mobile platform with the second wellhead. At step 1720, adecision is made whether the multi-service mobile platform is alignedwith the second wellhead. When the result of step 1720 is NO, and themulti-service mobile platform is not aligned with the second wellhead,method 1700 loops back to step 1718. When the result of step 1720 isYES, and the multi-service mobile platform is aligned with the secondwellhead, at step 1722, the second wellhead is connected in fluidcommunication with BOP and the pumping manifold, lower the outrigger tothe ground to stabilize the multi-service mobile platform, and power onthe electrical power unit and the hydraulic power unit to place themulti-service mobile platform in an operational state.

As disclosed herein, a multi-service mobile platform is enabled forvarious different types of well servicing, including jointed pipeservice, coiled tubing service, snubbing service, and wireline service.The multi-service mobile platform may be installed using loads todeliver modular components and assemblies, such as on a truck bed forexample. The multi-service mobile platform is mobile and may bepositioned in an installed and configured state from one wellhead toanother wellhead. The multi-service mobile platform includes integratedhydraulic and electrical power sources and integrated lines for thepower sources.

The above disclosed subject matter is to be considered illustrative, andnot restrictive, and the appended claims are intended to cover all suchmodifications, enhancements, and other embodiments which fall within thetrue spirit and scope of the present disclosure. Thus, to the maximumextent allowed by law, the scope of the present disclosure is to bedetermined by the broadest permissible interpretation of the followingclaims and their equivalents, and shall not be restricted or limited bythe foregoing detailed description.

What is claimed is:
 1. A method of installing a multi-service mobileplatform for well servicing, the method comprising: installing, at afirst location, a base platform structure having a top box and a bottombox, the base platform structure including four main lift cylinders thatenable the top box to be lowered over the bottom box such that the topbox and the bottom box mate together; installing a first hydraulicpressure unit in proximity to the first location to provide hydraulicpressure to at least one of the main lift cylinders to enable the mainlift cylinders to raise and lower the top box with respect to the bottombox, wherein the top box and the bottom box each comprise respectivefirst portions and second portions, each of the first portion and thesecond portion including two of the main lift cylinders, the firstportion corresponding to an operator's side and the second portioncorresponding to an off operator's side of the multi-service mobileplatform; delivering at least one work floor section to the firstlocation and installing the work floor section on the top box; anddelivering to the first location in any sequential order of loads: afirst load comprising a first auxiliary platform for coupling to therear work floor section, the first portion, and the second portion ofthe top box, including installing the first auxiliary platform, whereinthe first auxiliary platform includes a backup hydraulic pressure unit,a draw works, and an electrical power unit to power the multi-servicemobile platform; a second load comprising a blowout-preventer (BOP)platform, including installing the BOP platform to a bottom edge at thefirst portion and the second portion of the top box; a third loadcomprising a panorama cabin and a second hydraulic pressure unit thatcouples to the first portion of the top box, including installing thepanorama cabin, wherein the panorama cabin includes front windows, topwindows, and end windows that provide a working view of the work floorand a derrick installed on the work floor; a fourth load comprising asecond auxiliary platform for coupling to the second portion of the topbox, including installing the second auxiliary platform; and a fifthload comprising the derrick, further comprising hoisting the derrickonto the work floor, wherein the derrick includes a rotary drive, anauto torque wrench for pipe, and a crane arm, and wherein the derrick isaligned with the wellhead when installed on the work floor.
 2. Themethod of claim 1, further comprising: connecting the second hydraulicpressure unit to the main lift cylinders in place of the first hydraulicpressure unit to enable the main lift cylinders to raise and lower thetop box with respect to the bottom box using the second hydraulicpressure unit.
 3. The method of claim 1, wherein hoisting the derrickonto the work floor further comprises: hoisting the derrick onto thework floor using the draw works.
 4. The method of claim 1, furthercomprising: delivering, in any sequential order with respect to otherloads, a sixth load to the first location, wherein the sixth loadcomprises a snubbing unit.
 5. The method of claim 4, further comprising:lifting the snubbing unit onto the second auxiliary platform.
 6. Themethod of claim 1, further comprising: delivering, in any sequentialorder with respect to other loads, a seventh load to the first location,wherein the seventh load comprises at least one pipe stand rack,including installing the at least one pipe stand rack at a front portionof the multi-service mobile platform.
 7. The method of claim 6, furthercomprising: delivering, in any sequential order with respect to otherloads, an eighth load to the first location, wherein the eighth loadcomprises a pipe handler, including installing the pipe handler adjacentto the at least one pipe stand rack; and delivering, in any sequentialorder with respect to other loads, a ninth load to the first location,wherein the ninth load comprises a pipe bin, including placing the pipebin and the pipe handler adjacent to each other.
 8. The method of claim7, further comprising: delivering, in any sequential order with respectto other loads, a tenth load to the first location, wherein the tenthload comprises a coiled tubing injector.
 9. The method of claim 8,further comprising: lifting the coiled tubing injector onto the secondauxiliary platform.
 10. The method of claim 1, further comprising:delivering, in any sequential order with respect to other loads, aneleventh load to the first location, wherein the eleventh load comprisesa wireline unit, including lifting the wireline unit onto the top box.11. The method of claim 1, further comprising: lifting, using the cranearm, the snubbing unit over to the wellhead from the second auxiliaryplatform.
 12. The method of claim 11, wherein the snubbing unit isplaced on a trolley running on rails on the work floor at the secondauxiliary platform, and further comprising: prior to lifting thesnubbing unit from the second auxiliary platform, positioning thesnubbing unit in proximity to the wellhead using the trolley.
 13. Themethod of claim 9, further comprising: moving the pipe handler away fromthe multi-service mobile platform, wherein the pipe handler remains in aworking position; and delivering, in any sequential order with respectto other loads, a twelfth load to the first location, wherein thetwelfth load comprises a coiled tubing handler including a reel ofcoiled tubing enabled to feed the coiled tubing injector, and furthercomprising installing the coiled tubing handler adjacent to the pipehandler.
 14. The method of claim 1, further comprising: pinning the topbox to a raised height with respect to the bottom box.
 15. The method ofclaim 1, wherein installing the BOP platform to a bottom edge at thefirst portion and the second portion of the top box further comprises:using the main lift cylinders to position the top box to unload the BOPplatform and fix the BOP platform to a bottom edge at the first portionand the second portion of the top box including sliding the BOP platformin place into the multi-service mobile platform.
 16. The method of claim1, wherein installing, at the first location, the base platformstructure further comprises: positioning the bottom box on at least onesupplemental box to elevate the multi-service mobile platform by aheight of the supplemental box.
 17. The method of claim 1, wherein atleast one load is delivered on a truck bed, and wherein the main liftcylinders are used to raise the top box to a height corresponding to thetruckled.
 18. The method of claim 1, further comprising: lifting, usingthe crane arm, the coiled tubing injector over to the wellhead from thesecond auxiliary platform.
 19. The method of claim 18, wherein thecoiled tubing injector is placed on a trolley running on rails on thework floor at the second auxiliary platform, and further comprising:prior to lifting the coiled tubing injector from the second auxiliaryplatform, positioning the coiled tubing injector in proximity to thewellhead using the trolley.
 20. A method of transferring a multi-servicemobile platform for well servicing between wells, the method comprising:installing a multi-service mobile platform at a first wellhead, themulti-service mobile platform comprising: a base platform structurehaving a lower level and an upper level and four main lift cylinders forraising and lowering the upper level with respect to the lower level; aderrick including a rotary drive installed at a work floor supported bythe upper level; a draw works; a blow-out preventer (BOP) enabled forcoupling to the first wellhead; an electrical power unit; a hydraulicpower unit including a plurality of hydraulic lines; a pipe stand rack;a coiled tubing injector; a pumping manifold; and wherein the installingfurther comprises: pinning the upper level with respect to the lowerlevel; lowering an outrigger to the ground to stabilize themulti-service mobile platform; and connecting the first wellhead influid communication with BOP and the pumping manifold; responsive to adecision to move the multi-service mobile platform from the firstwellhead to a second wellhead in vicinity of the first wellhead,preparing the multi-service mobile platform for walking, furthercomprising: lifting up the outrigger off the ground; disconnecting thefirst wellhead from fluid communication with the pumping manifold;closing a master valve for the first wellhead; disconnecting the BOP andthe pumping manifold from fluid communication with the first wellheadand rest the BOP on a BOP platform at the lower level; and walking themulti-service mobile platform to the second wellhead using the main liftcylinders with the upper level pinned to the lower level, includingcontrolling actuation of base plates and sliding plates respectivelyattached to each of the main lift cylinders.
 21. The method of claim 20,wherein the multi-service mobile platform further comprises: a snubbingunit; and a wireline unit.
 22. The method of claim 20, furthercomprising: controlling actuation of the base plates and the slidingplates to align the multi-service mobile platform with the secondwellhead; when the multi-service mobile platform is aligned with thesecond wellhead, connecting the second wellhead in fluid communicationwith BOP and the pumping manifold; lowering the outrigger to the groundto stabilize the multi-service mobile platform; and powering on theelectrical power unit and the hydraulic power unit to place themulti-service mobile platform in an operational state.
 23. The method ofclaim 20, wherein the hydraulic power unit and the plurality ofhydraulic lines remain connected during the walking.
 24. The method ofclaim 20, wherein the coiled tubing injector remains connected to acoiled tubing reel via coiled tubing during the walking, wherein thecoiled tubing reel is enabled to move independently on the ground withrespect to the multi-service mobile platform.
 25. The method of claim20, further comprising: moving a pipe handler along with themulti-service mobile platform, wherein the pipe handler is enabled tomove independently on the ground with respect to the multi-servicemobile platform.
 26. A method of operating a multi-service mobileplatform for well servicing, the method comprising: installing amulti-service mobile platform at a first wellhead, the multi-servicemobile platform comprising: a base platform structure having a lowerlevel and an upper level and four main lift cylinders for raising andlowering the upper level with respect to the lower level; a derrickincluding a rotary drive installed at a work floor supported by theupper level; a draw works; a blow-out preventer (BOP) enabled forcoupling to the first wellhead; an electrical power unit; a hydraulicpower unit including a plurality of hydraulic lines; a pipe stand rack;a coiled tubing injector; a snubbing unit; a pumping manifold; and awireline unit, running jointed pipe into the wellhead using the derrickand the draw works; and after running jointed pipe is completed, runningcoiled tubing into the wellhead using the coiled tubing injector and acoiled tubing reel located adjacent to the multi-service mobileplatform.
 27. The method of claim 26, further comprising: before therunning jointed pipe is completed, using the snubbing unit for runningthej ointed pipe into the wellhead.
 28. The method of claim 26, furthercomprising: after the running coiled tubing is completed, loading thepipe stand rack with pipe using a pipe handler located adjacent to themulti-service mobile platform; and re-running jointed pipe into thewellhead using the derrick and the draw works.
 29. The method of claim28, further comprising: prior to the running jointed pipe or subsequentto the re-running jointed pipe, running wireline using the wireline unitinto the wellhead.
 30. The method of claim 26, further comprising: afterthe running coiled tubing is completed, running wireline using thewireline unit into the wellhead.
 31. The method of claim 26, furthercomprising: omitting the running jointed pipe.
 32. The method of claim31, further comprising prior to the running coiled tubing or subsequentto the running coiled tubing, running wireline using the wireline unitinto the wellhead.